//test.cpp
#include <stdio.h>
#include "source.h"

int main()
{
	int a = 10;
	int b = 12;
	int c = add_value(a, b);
	int d = del_value(c, a);
	printf("now a = %d, b = %d\n", a, b);
	printf("c = a + b = %d\n", c);
	printf("d = c - a = %d\n", d);
	return 0;
}
